Terrifier is an American horror media franchise created by Damien Leone and consisting of slasher films,[1][2][3] comic books, novels, and video games.

The franchise mainly focuses on Sienna Shaw, a young woman destined to defeat the enigmatic Art the Clown, a demonic serial killer that inhabits the fictitious Miles County, New York.

[5] On Halloween night, partygoer Tara Heyes (Jenna Kanell) and her sister Victoria (Samantha Scaffidi) become the targets of an enigmatic serial killer known only as Art the Clown (David Howard Thornton).

[6][7][8] Following the events of Terrifier, Art is resurrected by a mysterious entity to continue his killing spree across Miles County and the pursuit of the teenage Sienna Shaw (Lauren LaVera) and her younger brother Jonathan (Elliott Fullam).

The filmmaker explained that by the end of the franchise, the stories of Art the Clown, The Little Pale Girl, Victoria Heyes, and Sienna Shaw would be resolved.

[20][21][22] In January 29, 2025, Damien Leone posted on his social media during his birthday that the script for Terrifier 4 was in development, promising fans that it would be the final installment of the horror franchise and it would dive deeper into Art's origins.

[24] Between 2021 and 2022, a self-published two-issue limited comic book series adaptation of Terrifier was released by Damien Leone with illustrations by Steve McGinnis.